A recipe for a ratio of flour to sugar to butter as 3:2:1. If you want to make a larger batch using 15 cups of flour, how many cups of sugar and butter should you use, respectively?

Answer 1

To maintain the 3:2:1 ratio, you would need to use 15 cups of flour, 10 cups of sugar, and 5 cups of butter.

Here's how to calculate that:
- For every 3 parts flour, you need 2 parts sugar and 1 part butter.
- Since you have 15 cups of flour, divide it by the total parts (3 parts flour + 2 parts sugar + 1 part butter), which equals 6 parts.
- 15 cups of flour divided by 6 parts equals 2.5 cups per part.
- Multiply 2.5 cups by 2 to get the amount of sugar needed: 2.5 cups x 2 = 5 cups of sugar.
- Multiply 2.5 cups by 1 to get the amount of butter needed: 2.5 cups x 1 = 2.5 cups of butter.

Therefore, to make a larger batch using 15 cups of flour, you would need 10 cups of sugar and 5 cups of butter.